به نام خدا
Title: Domain Adaptive Object Detection
Authors: Fatemeh Mirrashed, Vlad I Morariu, Behjat Siddiquie, Rogerio S Feris, Larry S Davis
Abstract: We study the use of domain adaptation and transfer learning techniques as part of a framework for adaptive object detection. Unlike recent applications of domain adaptation work in computer vision, which generally focus on image classification, we explore the problem of extreme class imbalance present when performing domain adaptation for object detection. The main difficulty caused by this imbalance is that test images contain millions or billions of negative image sub windows but just a few image sub windows containing positive instances, which makes it difficult to adapt to changes in the positive classes present new do-mains by simple techniques such as random sampling. We propose an initial approach to addressing this problem and apply our technique to vehicle detection in a challenging urban surveillance dataset, demonstrating the performance of our approach with various amounts of supervision, including the fully unsupervised case.
Publish Year: 2013
Published in: WACV – IEEE
موضوع: بینایی ماشین (Computer Vision) – تشخیص اشیا (Object Detection)
ایران سای – مرجع مقالات علمی فنی مهندسی
حامی دانش بومی ایرانیان
به نام خدا
Title: Comparative Study of Traditional Requirement Engineering and Agile Requirement Engineering
Authors: Asma Batool , Yasir Hafeez Motla , Bushra Hamid , Sohail Asghar, Muhammad Riaz , Mehwish Mukhtar, Mehmood Ahmed
Abstract: Traditional RE and Agile RE are two different approaches on the basis of their planning and control mechanism. This Paper distinguishes the Traditional RE and Agile RE. Furthermore it investigates the reasons for which software industries shifted from Traditional RE to Agile RE. Research is carried out by conducting a literature study and finally a case study of software development to evaluate which approach has better success rate than other. With the help of our finding and results we have evaluated that Agile RE performs better than Traditional RE in large organizations where changes evolve throughout the development phase of software life cycle. Keywords- Requirement Engineering , Traditional Requirement Engineering, Agile Requirement Engineering, Scrum, Extreme Programming, Obj ect Oriented Development, Requirement Elicitation, Requirement Analysis, Requirement Management, Software Requirement Specification.
Publish Year: 2013
Published in: ICACT – IEEE
موضوع: مهندسی نرم افزار
ایران سای – مرجع علمی فنی مهندسی
حامی دانش بومی ایرانیان
به نام خدا
Title: Effect of Higher-Order PSDs on Timing Jitter
Authors: Isamu Wakabayashi , Daisuke Abe, Masatoshi Sano
Abstract: This paper describes the effect of higher-order PSDs at a squarer output on the jitter variance at a timing circuit output. The timing circuit consists of a squarer, a pre-filter, and a PLL arranged in tandem. The transmission schemes are assumed to be PAM, ASK and QAM. Additive white Gaussian noise exists at the receive filter input. The band-limiting scheme is assumed to be of a cosine roll-off. The higher-order PSDs are components of the jitter source PSD at the squarer output. Theoretical calculations show that the SS and SN components of the jitter source PSD can be represented by Oth- and ±2nd-order PSDs. However, based on numerical calculations, the SN component consists of only the Oth-order PSD. This may be due to the effect of the band-limiting scheme assumed herein. The results hold for all of the transmission schemes, SNRs, alphabet sizes, and roll-off factors treated in this paper.
Publish Year: 2013
Published in: ICACT – IEEE
موضوع: الکترونیک
ایران سای – مرجه علمی فنی مهندسی
حامی دانش بومی ایرانیان
به نام خدا
Title: Heat Transfer in Nanoelectronics by Quantum Mechanics
Author: Thomas Prevenslik
Abstract: Heat transfer began in macroscopic bodies with classical physics in Fourier’s transient heat conduction equation based on the notions of heat capacity by Lavoisier and Laplace. Theories of Einstein’s characteristic vibrations and Debye’s normal modes identified phonons as the heat carriers in Fourier’s equation. Einstein and Debye could have but did not include the photons in Planck’s theory of blackbody radiation as additional heat carriers. Since then, heat transfer by phonons alone has served well in deriving the thermal response of macroscopic bodies. However, unphysical findings for the thermal response of nanostructures suggest that Fourier’s equation needs to be modified at the nanoscale. Proposed modifications include vanishing heat capacity as required by quantum mechanics and conservation of absorbed energy by frequency up-conversion to the total internal reflection resonance of the nanostructure by quantum electrodynamics, the consequence of which in nanoelectronics is charge creation instead of an increase in temperature. Nanoelectronics (memristors, Ovshinsky Effect, and 1/f noise) are discussed with extensions to heat dissipation in nanocomputing.
Publish Year: 2012
Publisher: IEEE-NANO
موضوع: نانوالکترونیک
ایران سای – مرجع علمی فنی مهندسی
حامی دانش بومی ایرانیان